Hi,

Just some questions from a linux newbie about service files.
For example I was looking at sshd service file.

Q-1. What is the use of service.pid file like sshd.pid? Why I need to write PID inside this file?
Q-2 I am writing a service file for Jboss Server and when I issue restart command for the service, I encountered the race problem (I grep the PID and write into the PID file and in case of restart two PID appear in the PID file instead of one ). Restart in my case is:
restart)
stop
start
if I put a sleep of 3 then it works fine. But just wondering is the only solution or do need to do something else to avoid race?

TIA,
Sachin

Q-1. initscripts (or rather functions in /etc/rc.d/init.d/functions) rely for some part on being able to read the current process ID from the file.
Q-2. Why re-invent the wheel? :-]

Thanks for reply..

Q-1: is it a must to write a .pid file manually?

Q-2: I did get that script but it doesn't have PID file handling.So I am finding the PID and writing in PID file.
PID=`ps -ef | grep org.jboss.Main | egrep -v grep | awk '{print $2}'` and the write this into the .pid file. is this the correct way?

Q-3: putting sleep is okay in restart case?

TIA